My battery on my 3GS is dwindling to the Point that is does not hold a charge very well. I was thinking about ordering a new one to replace it. While looking at the instructions on ifixit.com, I figured I might as well replace the back cover and maybe the home button while I am at it...

For anyone who has replaced their 3 gs battery, or a 3G battery, can you tell me- after reassembling the phone, is it "like new" or is it wonky where there are gaps in the outside shell, or is it impossible to fit together the way it came from the factory, etc.?

If reassembling the thing is going to make it permanently puffy or not fit together right, I wont bother.

Yep. It worths it. I have replaced many back housing on the 3G. I am ordering a back housing for my 3GS and should be here next week. it takes me around 1 hour and 15 minutes to replace it. The tricky part is the vibrate button.

I did not order it from Ifixit. I ordered if off Ebay. make sure you read the description careful. There is Ebay sellers list the back housing on Ebay showing the inside only. Once it arrives, the back did not have Apple logo or any printing. Amazon is another place that you can order, but it much higher price because they ask for shipping charge which is around $5.00.

I did not order it from Ifixit. I ordered if off Ebay. make sure you read the description careful. There is Ebay sellers list the back housing on Ebay showing the inside only. Once it arrives, the back did not have Apple logo or any printing. Amazon is another place that you can order, but it much higher price because they ask for shipping charge which is around $5.00.

Use either glue or somekind of sticky stuff (I use caulking) to hold the vibrator button to the part and put it in. It is hard to put the vibrate button in first and try to fit the switch through the little hold on the button.

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